Qt Widgets Designer UI files represent the widget tree of the form in XML format. The forms can be processed:| doc.qt.io
A guide to creating plugins to extend Qt's applications and functionalities.| doc.qt.io
The QLineEdit widget is a one-line text editor.| doc.qt.io
An overview of the drag and drop system provided by Qt.| doc.qt.io
The QApplication class manages the GUI application's control flow and main settings.| doc.qt.io